Cannot delete selected items in LIstView after using AlertDialog - android-studio

Question

Here's my problem:
In my app, I have set ChoiceMode(CHOICE_MODE_MULTIPLE_MODAL) and the method of MultiChoiceModeListener for my ListView in order to allow user to delete items in the list by using context menu. I have put the following code in onActionItemClicked method and everything work fine:
#Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
#Override
public void onDestroyActionMode(ActionMode mode) {
//Clear the list of selected item's id when the user exit the context menu bar.
mSelectedItemIdList.clear();
}
#Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()){
case R.id.menu_select_delete:
deleteSelectedItem();
mode.finish();
return true;
default:
return false;
}
}
private void deleteSelectedItem(){
int totalRowDeleted = 0;
if (!mSelectedItemIdList.isEmpty()){
for (int i = 0; i < mSelectedItemIdList.size(); i++){
long idInDatabase = mSelectedItemIdList.get(i);
Uri selectedItemUri = ContentUris.withAppendedId(TimeEntry.CONTENT_URI, idInDatabase);
int rowDeleted = getContentResolver().delete(selectedItemUri, null, null);
if (rowDeleted != 0){
totalRowDeleted++;
}
}
}
if (totalRowDeleted == 0){
Toast.makeText(MainActivity.this, getString(R.string.delete_error_message), Toast.LENGTH_SHORT).show();
return;
}
Toast.makeText(MainActivity.this, totalRowDeleted + " " + getString(R.string.delete_success_message), Toast.LENGTH_SHORT).show();
}
But after I added the AlertDialog for confirmation like this:
#Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()){
case R.id.menu_select_delete:
showDeleteSelectedConfirmationDialog();
mode.finish();
return true;
default:
return false;
}
}
private void showDeleteSelectedConfirmationDialog(){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(getString(R.string.delete_selected_confirmation));
builder.setPositiveButton(getString(R.string.confirm), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
deleteSelectedItem();
}
});
builder.setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
if (dialog != null){
dialog.dismiss();
}
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
The App doesn't crash but deleteSelectedItem() doesn't work anymore! Somehow the program doesn't reach the things in the for loop inside the method. Maybe there are some simple mistakes I have made. Can anyone help me?

Answer 1

I solved the problem.
The onDestroyActionMode() method is called everytime the AlertDialog show up. So, I have deleted the code in onDestroyActionMode() and add the code for clearing my list after the records are deleted.
private void deleteSelectedItem(){
int totalRowDeleted = 0;
if (!mSelectedItemIdList.isEmpty()){
for (int i = 0; i < mSelectedItemIdList.size(); i++){
long idInDatabase = mSelectedItemIdList.get(i);
Uri selectedItemUri = ContentUris.withAppendedId(TimeEntry.CONTENT_URI, idInDatabase);
int rowDeleted = getContentResolver().delete(selectedItemUri, null, null);
if (rowDeleted != 0){
totalRowDeleted++;
}
}
}
if (totalRowDeleted == 0){
Toast.makeText(MainActivity.this, getString(R.string.delete_error_message), Toast.LENGTH_SHORT).show();
return;
}
Toast.makeText(MainActivity.this, totalRowDeleted + " " + getString(R.string.delete_success_message), Toast.LENGTH_SHORT).show();
//Clear the list of selected item's id after delete the records.
mSelectedItemIdList.clear();
}